Platinum Ring With 6.85 ct. NH Ruby and 4.12 ct. Diamonds
By Joël Glecer / Orologio
Located in Antwerp, BE
Beautiful Platinum Ring With Amazing Color & Life 6.85 ct. NH Ruby and 4.12 ct. Diamonds Ruby: Purplish-Red Ruby Not Heated 6.85 ct.
Diamond, Ruby, Platinum
Schmuckzicke 18kt White Gold CRIMSON RED AAA+ Ruby & Diamond Necklace Mozambique
Located in Viena, Viena
red and white, synonym colors for love, that's why we decided to combinate pigeon blood rubies from Mozambique, a more passionate red is hard to find, 3 untreated (not heated) rubies...
Diamond, Ruby, 18k Gold, White Gold
GIA CERTIFIED Burmese Ruby No-Heat Intense Vivid Red 3.40 Carats GIA-1216189087
Located in Miami, FL
Collateral: This Burmese intense red ruby gemstone is accompanied by a certificate report from the GIA laboratory number 1216189087 stating is a natural earth mined not-heated Burmes...
Ruby
Emilio Jewelry Certified 27.00 Carat No Heat Pigeons Blood Burma Ruby Bracelet
By Emilio!
Located in New York, NY
If it is a "pigeon blood red" ruby bracelet that has not been heated, and crystallized almost perfectly, it is a rare opportunity in a lifetime.
Ruby
GIA 1.56 Carat Natural Unheated Ruby and Diamond Ring in Platinum
Located in La Jolla, CA
The Ruby originates from Burma (Myanmar) and has not been heated.
Diamond, Ruby, Platinum
9.49 Carat No Heat Burmese Ruby Diamond Gold Earrings
Located in Beverly Hills, CA
Classy earrings featuring two oval rubies - 4.89-ct and 4.60-ct. The rubies come with a GIA Ruby Origin Report stating that the rubies are not heated and are of Burmese origin.
Ruby, White Diamond, 14k Gold, 18k Gold, White Gold, Yellow Gold
RCM 18K White Gold GIA Baguette Ruby & Bezel Diamond Cluster 8.35ctw Earrings
By RCM
Located in Montclair, NJ
The earrings come with the original GIA certification for the rubies. Stock Number: MK-460219463-24012522-EY --Certification Details-- Laboratory: GIA Report Type: Ruby Origin Repor...
Diamond, Ruby, 18k Gold, White Gold
Schmuckzicke 18kt White Gold CRIMSON RED AAA+ Ruby & Diamond Necklace Mozambique
Located in Viena, Viena
red and white, synonym colors for love, that's why we decided to combinate pigeon blood rubies from Mozambique, a more passionate red is hard to find, 3 untreated (not heated) rubies...
Diamond, Ruby, 18k Gold, White Gold
Pigeon Blood Ruby & Diamond Pendant Necklace in 18K White Gold IGI Certificate
Located in Viena, Viena
high-quality pendant, no savings were made on the material, isn't it wonderfully fine and noble?a pigeon blood ruby from Mozambique, a more passionate red is hard to find, an untre...
Diamond, Ruby, 18k Gold, White Gold
18K Yellow Gold & Platinum GIA Oval Cabochon Ruby w/ Diamond Halo Cocktail Ring
Located in Montclair, NJ
Stock Number: MK-550346112-23052612-PAR-EY --Certification Details:-- Laboratory: GIA Report Number: 1226809912 Shape: Oval Cutting Style: Double Cabochon Transparency: Transparent ...
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
3 Layer GIA 8.48-8.98mm Pearl Strands 18k Gold Calibre Cut Ruby Diamond Clasp
Located in Montclair, NJ
Comes w/ original GIA certification for the pearls and rubies. Stock Number: MK-710297933 --GIA Certification #1:-- Laboratory: GIA GIA Report Number: 5232459044 Shape: Near - round...
Diamond, Pearl, Ruby, Gold, 18k Gold, Yellow Gold
18k Two Tone Gold 17.48ct GIA Pear Ruby & Diamond Large Drop Chandelier Earrings
Located in Montclair, NJ
The earrings come with the original GIA certification for 2 of the pear cut rubies. Stock Number: EG-490172586-21050719-EY -- Certification Details -- Laboratory: GIA Report Number:...
Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
$5,200Sale Price|20% Off
GIA Certified 1.60 Carat Cushion No Heat Natural Ruby Halo Diamond Ring 18K Gold
Located in San Francisco, CA
This Stunning ruby is Not Heated! The weight of the diamonds on the ring is 0.40 carat.
Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
$39,600Sale Price|20% Off
Boucheron 1937 Paris Art Deco Bracelet 18Kt Gold and 5.44 Ctw Diamonds & Rubies
By Boucheron
Located in Miami, FL
The rubies are gems quality, not heated and Burmese origin.
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Platinum
Natural Mozambique ruby not treated not heated 4.05crts
Located in Lagos, NG
Natural Mozambique ruby translucent red not treated not heated 4.05 carat certificate available on request
Precious Stone
Ruby Ring 14 Karat White Gold Not Heated/ Not Treated Ruby, Certified Gem
Located in Geneva, CH
Beautiful 14 K white gold ring, which represents a natural not heated and not treated certified natural ruby. The weight of the gem is 5.97 Carats.
Ruby, White Gold, 14k Gold
Unavailable
H 0.12 in W 0.12 in D 0.12 in
Natural Mozambique ruby translucent not heated not treated 1.8 crts
Located in Lagos, NG
Natural Mozambique ruby translucent red not treated not heated 1.8carats
Precious Stone
Unavailable
H 0.2 in W 0.2 in D 0.2 in
Natural Mozambique ruby translucent not heated not treated 2.8 crats
Located in Lagos, NG
Natural Mozambique ruby translucent red not treated not heated 2.8 carat
Precious Stone
9.25 Not Heated Burma Ruby Certified White Pave Diamond Emerald Cocktail Ring
Located in Milan, IT
An extremely rare Burma ruby od 9.25 ct, no indication of thermal treatment, GRS Certified. White and yellow gold, diamonds pave, oval brilliant cut Burma ruby. Burma ruby: ct. 9.2...
Diamond, Emerald, Ruby, 18k Gold
Unavailable
2.46 Carat Ruby Ring AGL Certified
Located in La Jolla, CA
The ruby comes with an AGL document certifying that the ruby has not been heated and that it has Thai provenance.
Ruby
18 Karat Yellow Gold Brooch, Set with Natural Ruby's
Located in Heerlen, NL
- 18K. yellow gold weight: 10.08 grams - 6 ruby's = 0,40ct (not heated) - 1 diamonds (briljant) = 0,04crt VSI-F - Italy ca 1950 makers mark: 330AL = Valenza Italy
Diamond, Ruby, Yellow Gold
French 18 Karat Yellow Gold Cabochon No Heat Ruby and Pave Diamond Ring
Located in New York, NY
It is estimated that only 2 to 3 percent of the worlds rubies are not heated, making this a truly rare find!
Ruby, Diamond, 18k Gold
6.14 Carat Mozambique Pigeons Blood Ruby Ring and Earrings Set in 18K White Gold
Located in Central, HK
This set certifies that all 3 oval shape rubies are Mozambique Pigeon's Blood rubies that have not been artificially heated.
Diamond, White Diamond, Ruby, 18k Gold, White Gold
1.06 Carat Natural Ruby Halo Ring 23 Points VS/G Diamonds Set in 18 Karat Gold
Located in Kiara, AU
The stone has been tested by the Emil Gem Laboratory (Japan) in Bangkok who find it to be a natural Ruby that has been subjected to heating. Rubies that have not been heated are in ...
Ruby, 18k Gold
Diamond and Ruby Eternity Wedding Band 18 Karat White Gold
Located in Tarzana, CA
Width: 6 mm Diamonds: 3 Carat Asscher cut D VS Rubies: %100 natural not heated 5 carats Could be order in yellow & rose gold.
Diamond, 18k Gold
18kt Yellow Gold No Heat 4.85cts Ruby and Diamond 3 Stone Ring
Located in Rehoboth Beach, DE
This Stone is Deep Vibrant Red in Color. The Ruby is Not Heated nor Color Treated. The Ring Also Contains Two (2) Trillion Cut Diamonds Weighing .90cts in Total Carat Weight.
18k Gold
IGI Certified 3.87ct Not-Treated Thai Ruby 1.71ct Diamonds Platinum Ring
Located in Hong Kong, HK
AMAZING Platinum Ring showcasing a 3.87ct Natural, Not-Heated Thai Ruby accented by 1.71ct Natural Diamonds.
Diamond, Ruby, Platinum
Antique Natural Burmese Star Ruby Cabochon Signet Ring, ca. 1860s
Located in Idar-Oberstein, DE
An antique signet ring with a natural Burmese star ruby cabochon, ca. 1860s. The uniquely longish cabochon shaped ruby weighs 3.18ct, is natural (not heated) and of Burmese origin ...
Ruby, Star Ruby, 22k Gold
Victorian Diamond and Ruby Dove Brooch, circa 1880s
Located in Idar-Oberstein, DE
From its beak hangs a facetted round shaped natural, not heated, ruby of Burmese origin. The ruby weighs approximately 0.80 carat.
Diamond, Ruby, 14k Gold, Silver
GIA Natural Unheated Ruby in Custom French Platinum Diamond Mounting
By Sebastien Barier
Located in San Francisco, CA
This truly exquisite French Platinum and Diamond Ring showcases an exceptional .90 carat rich red Natural Ruby. This fine Brilliant Cushion Step Cut stone comes with GIA report #2121...
Diamond, Ruby, Platinum
18K Gold Hemmerle Natural Ruby and Emerald Cuff Bangle
By Hemmerle
Located in Idar-Oberstein, DE
The two fine red ruby drops are natural (not-heated) and weigh circa 8 carats together and the two intense green emerald drops weigh circa 5 carats together (certified by DSEF).
Emerald, Ruby, 18k Gold
Sold
H 1.17 in W 0.67 in L 17.75 in
GIA 1.94 Unheated Ruby Pendant Necklace with Round Diamonds in Platinum
Located in La Jolla, CA
The Ruby originates from Mozambique and has not been heated.
Diamond, Ruby, Platinum
Mid-Century GIA 1.10 Carat No Heat Ruby Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
One Mid Century GIA No Heat Ruby Diamond Platinum Cocktail Ring. Featuring one GIA certified ruby of approximately 1.10 carats, accompanied with certificate #2225424658 stating the r...
Diamond, Ruby, Platinum
Sold
H 0.82 in W 0.85 in
Platinum AGL 5.00ctw Cabochon No Heat Burma Ruby & Diamond Flower Clip Earrings
Located in Montclair, NJ
This pair comes with the original AGL certification which guarantees that the ruby stones are 100% natural, not heated, and originated from Burma.
Diamond, Ruby, Platinum
Platinum AGL Burma No Heat Red Ruby W/ Half Moon Diamond 3 Stone Ring
Located in Montgomery, AL
The center is a Burma red ruby that has not been heated or treated in any way.
Diamond, Ruby, Platinum
Sold
H 2.95 in W 2.64 in D 0.34 in
MAUBOUSSIN 1938 Trabert & Hoeffer Pendant-Brooch 18Kt Gold & Burmese Rubies
By Mauboussin
Located in Miami, FL
Collateral: This brooch is accompanied by the GIA laboratory report stating the rubies are natural Burmese, transparent and not heated.
Diamond, Ruby, White Diamond, Gold, Yellow Gold, 18k Gold
GIA Certified No Heat Burma Carved Ruby Diamond Cocktail Rose Gold Ring
By OGI Ltd
Located in New York, NY
14 karat rose gold ring set with no heat carved Burma Ruby with foliate motif Ruby weighing 4.34 carats GIA certificate #5221712556f GIA certificate stating Not heated Ruby is set i...
Diamond, Ruby, Gold, 14k Gold, Rose Gold
Sold
H 0.59 in W 0.4 in
18k Gold 5.45ctw GIA Oval Red Ruby & Diamond Flower Halo Fancy Cocktail Earrings
Located in Montclair, NJ
The GIA certification guarantees that these rubies are 100% natural with one being heated only and the other with no indications of heating.
Diamond, Ruby, 18k Gold, Rose Gold, White Gold
Sold
W 1.18 in L 1.3 in
Bailey, Banks & Biddle 1880 Enamel Etruscan Queen Pendant 18kt Gold Ruby Diamond
By Bailey, Banks & Biddle
Located in Miami, FL
The rubies are Burmese, translucents and not heated.
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Enamel
Sold
W 1.18 in L 1.96 in
French 1890 Art Nouveau Swan Arp Brooch 18Kt Gold With 5.05 Ctw Rubies Diamonds
Located in Miami, FL
The rubies are not heated and most probably Burmese origin.
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold
GIA Certified 1.56ct Burma Not-Heated Ruby 0.60ct Natural Diamonds Platinum Ring
Located in Hong Kong, HK
Immerse yourself in timeless luxury with our platinum ring, certified by GIA laboratory, boasting a 1.56-carat oval Burma not-heated natural ruby in a mesmerizing purplish-red hue.
Diamond, Ruby, Platinum
Unheated Star Ruby Ring 9.91 Carat GIA Certified No Heat
By Merkaba
Located in Beverly Hills, CA
Top quality Rubies which have not been heated are scarce. Rubies are commonly heated to modify their color and appearance.
Diamond, Ruby, White Diamond, Multi-gemstone, Star Ruby, Platinum
This deep red gem is the color of heat and passion — vintage and antique ruby jewelry is perfect for those born in the middle of summer.
Rubies are one of the few gemstones that can give diamonds a run for their money. Just consider the Van Cleef & Arpels “scarf” necklace the Duke of Windsor presented to the Duchess on her 40th birthday, in 1936 — set with diamonds and dripping with rubies, a testament to the deep-red gemstone’s power — or the slippers encrusted with 4,600 rubies that Harry Winston made to commemorate The Wizard of Oz’s golden anniversary. July babies have permission to adorn themselves with this beautiful red stone even when it’s not their birthday.
Rubies are considered precious stones — along with diamonds, sapphires and emeralds — and have a hardness of 9.0 on the Mohs Scale, surpassed only by Moissanite and diamonds. They are composed of corundum, a colorless mineral that is also the basic material of sapphires. In the July birthstone, the red of the gemstone — and the various hues seen in sapphires — are produced by the presence of trace elements. In the case of a ruby, this element is chromium. Rubies range in color from vermilion to a violet red. They are also pleochroic, which means that a stone’s hue can vary depending on the direction of viewing. The most sought-after color is pigeon’s blood: pure red with a hint of blue.
Rubies that are hosted in dolomite marble are the most prized: Because the marble is low in iron, so are the rubies, resulting in a more intense color. Rubies found in basalt, which has a higher iron content, are generally darker and less intense.
When shopping for antique and vintage ruby jewelry, remember that the 4Cs of selecting the perfect diamond — color, clarity, cut and carat — also apply to rubies.
According to the Gemological Institute of America, the color of the July birthstone should be a vibrant to slightly purplish red, and the stone should be clear and inclusion-free. Accordingly, the cut should show off its color and clarity. As for the last criterion, fine rubies more than a carat in weight are rare. Often, large rubies are more expensive than diamonds of comparable weights.
Find a collection of ruby necklaces, ruby rings and other accessories on 1stDibs.